A £1billion superyacht has been launched to enable scientific researchers and the mega-wealthy to sail the seas side-by-side.

The 215-metre G-Quest is the brainchild of California designer Steve Kozloff, who wanted to create a vessel that allows its owner to oversee their philanthropic efforts while living in luxury at sea.

It can be kitted out with an oceanographic laboratory, medical lab or even a small hospital.

The upper three decks are designated for the owner and the owner's guests, while the remaining 80% of the vessel is dedicated to oceanographic research, medical research and green propulsion experimentation, among other scientific endeavours.

A sizeable 6,500 sq ft aircraft hangar on the ship can house two Sikorsky S-92 VIP helicopters, and an electric vertical take-off and landing for ship to shore transport of other, smaller helicopters.

There is also a garage designated for two SUVs, including one mobile self-contained Nimbl overland exploration vehicle, as well as a U-Worx Research submarine.

The G-Quest accommodates 26 guests in full luxury, plus 150 crew that could include doctors, scientists, pilots, nurses, research engineers, and the ship's operating crew.

The 3,000 sq ft owner's suite is located at the bow with panoramic views and a large private pool.

Elsewhere, guests can enjoy a large spa and pool with bar, as well as a spacious dinning and lounging area.

A health suite would provide over twenty hospital beds, including 5G connected robotic surgery, while further facilities can include MRI and x-ray imaging, an ophthalmology department, and even a dental area.

There are a few other features to keep guests onboard entertained, including a pool and shaded lounging area, and a large solarium featuring a dining area with unhindered views of the sky and seascape.

If that gets a little dull, then there's a beach club with full bar and half-course basketball court on the flybridge.

The G-Quest would be propelled by azimuth thrusters, which receive power from batteries charged by genset engines fuelled by hydrogen, methanol, biodiesel, and green fuels of the future.

A thorium molten salt nuclear reactor would heat up water and power a steam turbine.

The vessel has a long-range capability of over 20,000 nautical miles.

Currently a concept, the Steve Kozloff Design G-Quest, described as "the future in research, humanitarian goals, and luxury", is available for interested parties to take to production.

Its price tag is listed as $1000,000,000 on the website.

Previous Kozloff designs include a 100 metre double-masted trimaran which features six decks and two dedicated helipads.

The concept vessel can be facing any direction when the sails are raised or lowered, and the mast can rotate a full 360 degrees.